Quote:
Originally Posted by erick
Wide open - 2.8 I think. (ISO 800) Do you think shutting it down might improve the outer part of the image, Roger? I don't think it did when I tried some daytime experiments.
Still, it was just a cheap experiment. I should really buy a proper Pentax fisheye for the K100D - if I get serious and rich! (Actually I want a good Pentax zoom first - the 18-55mm I think.)
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Stopping it down from F/2.8 should improve the image quality, but I found when trying to photograph the Geminids on Saturday night that I needed F/2.8 just to capture any, there were several that I saw but didn't capture when at F/4. So I think you're best to stick to F/2.8
Successful experiment I think